06952f41ff
Add SCHED_RESET_ON_FORK to <sys/sched.h>. If this flag is set, SCHED_FIFO and SCHED_RR are reset to SCHED_OTHER and negative nice values are reset to zero in each child process created with fork(2). Signed-off-by: Christian Franke <christian.franke@t-online.de>
77 lines
2 KiB
C
77 lines
2 KiB
C
/*
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* Written by Joel Sherrill <joel@OARcorp.com>.
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*
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* COPYRIGHT (c) 1989-2010.
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* On-Line Applications Research Corporation (OAR).
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose without fee is hereby granted, provided that this entire notice
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* is included in all copies of any software which is or includes a copy
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* or modification of this software.
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*
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* THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR IMPLIED
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* WARRANTY. IN PARTICULAR, THE AUTHOR MAKES NO REPRESENTATION
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* OR WARRANTY OF ANY KIND CONCERNING THE MERCHANTABILITY OF THIS
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* SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR PURPOSE.
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*
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* $Id$
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*/
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#ifndef _SYS_SCHED_H_
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#define _SYS_SCHED_H_
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#include <sys/_timespec.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Scheduling Policies */
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/* Open Group Specifications Issue 6 */
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#if defined(__CYGWIN__)
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#define SCHED_OTHER 3
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#else
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#define SCHED_OTHER 0
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#endif
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#define SCHED_FIFO 1
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#define SCHED_RR 2
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#if defined(_POSIX_SPORADIC_SERVER)
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#define SCHED_SPORADIC 4
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#endif
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#if __GNU_VISIBLE
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#define SCHED_IDLE 5
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#define SCHED_BATCH 6
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/* Flag to drop realtime policies and negative nice values on fork(). */
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#define SCHED_RESET_ON_FORK 0x40000000
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#endif
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/* Scheduling Parameters */
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/* Open Group Specifications Issue 6 */
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struct sched_param {
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int sched_priority; /* Process execution scheduling priority */
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#if defined(_POSIX_SPORADIC_SERVER) || defined(_POSIX_THREAD_SPORADIC_SERVER)
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int sched_ss_low_priority; /* Low scheduling priority for sporadic */
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/* server */
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struct timespec sched_ss_repl_period;
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/* Replenishment period for sporadic server */
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struct timespec sched_ss_init_budget;
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/* Initial budget for sporadic server */
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int sched_ss_max_repl; /* Maximum pending replenishments for */
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/* sporadic server */
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#endif
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};
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#ifdef __cplusplus
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}
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#endif
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#endif
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/* end of include file */
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